doc-src/Tutorial/ToyList/lemma1
author paulson
Wed, 13 Dec 2000 10:34:45 +0100
changeset 10660 a196b944569b
parent 5377 efb799c5ed3c
permissions -rw-r--r--
another round of tidying-up
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nipkow
parents:
diff changeset
     1
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";